Thermal Sensor Relay Module
The Thermal Sensor Relay Module is designed for temperature detection and control. It utilizes a potentiometer to adjust the temperature threshold, which in turn controls a valve. The module’s relay output can be directly connected to AC high-power devices for efficient temperature regulation.
Specifications:
| Operating Voltage (VDC): | 3.3 ~ 5 |
|---|---|
| Maximum Voltage(V) | 5V DC |
| Max Operating Current (A) | 0.15 |
| Trigger Voltage (VDC) | 5 |
| Switching Voltage (VAC) | 250@10A |
| Switching Voltage (VDC) | 30@10A |
| Operating Temperature (°C) | -40 to 100 |
| Opt. Relative Humidity(RH) | 20% ～ 85% |
| Storage condition (℃) | -40 to 125 |
| Length (mm): | 50 |
| Width (mm): | 26 |
| Height (mm): | 17 |
| Weight (g): | 16 |
Package Includes
1 x Thermal Sensor Relay Module.
Thermal Sensor Relay Module Overview
The Thermal Sensor Relay Module is a compact temperature detection board with an onboard potentiometer for setting a precise activation threshold. Once the ambient temperature crosses this threshold, the built-in relay switches AC or DC loads up to 10 A, making it ideal for automated heating, cooling, or safety cut-off applications.
Key Features of Thermal Sensor Relay Module
- Adjustable temperature threshold via onboard potentiometer for accurate control
- Wide operating voltage range: 3.3 V to 5 V DC with a trigger voltage of 5 V DC
- High-power relay output rated at 250 VAC @ 10 A or 30 VDC @ 10 A
- Works reliably in harsh conditions: -40 °C to 100 °C operating temperature and 20%–85% RH
- Compact footprint (50 × 26 × 17 mm) and lightweight (16 g) for easy panel or enclosure mounting
- Genuine product from Zbotic, backed by fast shipping and quality assurance
Applications and Use Cases
- Automatic fan or exhaust control in electronics cabinets to prevent overheating
- Temperature-based switching for water heaters, boilers, or radiators
- Safety cutoff for industrial motors and machinery at preset temperature limits
- Climate regulation in small incubators or terrariums
- Monitoring and controlling temperature in aquarium heaters
- Enclosure temperature management for 3D printers and CNC machines
How to Use Thermal Sensor Relay Module
Connect the module’s VCC and GND pins to a stable 5 V DC supply, then wire your load between the COM and NO (or NC) relay terminals. Power up the board and rotate the potentiometer until the relay actuates at your desired temperature. Place the module near the target area, ensuring good thermal contact, and it will switch connected devices automatically when the temperature crosses the set point.
Why Buy from Zbotic?
- Genuine Products: All items sourced from authorized distributors
- Fast Shipping: Orders ship within 24 hours with tracking (non backordered products)
- Free Shipping: Free delivery on qualifying orders
- COD Available: Cash on Delivery, UPI, cards, net banking
- Technical Support: Expert help for setup and troubleshooting
- Easy Returns: Hassle-free replacement for defective products
Frequently Asked Questions
How do I set the desired activation temperature?
Rotate the onboard potentiometer clockwise to increase the trigger temperature and counterclockwise to lower it. Test by monitoring when the relay clicks as ambient temperature approaches your set point.
Can the relay handle high-voltage AC appliances?
Yes. The module’s SPDT relay is rated for up to 250 VAC at 10 A or 30 VDC at 10 A. Always ensure your load does not exceed these limits and follow proper insulation and wiring practices.
What power supply voltage is required for reliable operation?
The module operates on a DC supply between 3.3 V and 5 V, with a recommended 5 V input to guarantee stable trigger performance and full relay activation.
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Read More →Technical Specifications
| SKU | AI1129 |
|---|---|
| Weight | 0.02 kg |
| Availability | Out of Stock |
Applications & Use Cases
The Thermal Sensor Relay Module is a versatile relay modules used across a wide range of applications including home automation, industrial control, IoT projects, Arduino/Raspberry Pi interfacing, and motor control.
Common use cases:
- Switching high-voltage AC appliances with a microcontroller
- Building a smart home relay board
- Automating irrigation pumps in agriculture
This product is ideal for electronics engineers, IoT developers, and automation hobbyists.
Technical Tip: Use optocoupler-isolated relay modules to protect your microcontroller. Match relay coil voltage to your MCU logic level (3.3V or 5V).
Shipping & Delivery
- Free shipping on orders above ₹999 across India
- Dispatched within 1-3 business days
- Expected delivery: 3-7 business days depending on location
- Secure packaging to ensure safe transit of electronic components
Vijay Sen (verified owner) –
This Thermal Sensor Relay is excellent for the price. My data logging project is working perfectly now.
Deepika Panchal (verified owner) –
Superb Thermal Sensor Relay! Using it in my environmental monitoring system. Very reliable data.
Rakesh Choudhury (verified owner) –
Good quality Thermal Sensor Relay. Some variation in readings but within acceptable range.
Lakshmi Choudhury (verified owner) –
Outstanding accuracy from this Thermal Sensor Relay. Compared with a professional instrument, readings match closely.
Neha Naidu (verified owner) –
Perfect for my weather station. This Thermal Sensor Relay gives consistent readings day and night.
Rishabh Khanna (verified owner) –
Great quality Thermal Sensor Relay. Calibrated it easily and the accuracy is impressive.
Piyush Nayak (verified owner) –
Good Thermal Sensor Relay. Works as described. Calibration needed some patience but results are good.
Sahil Hegde –
Pretty good Thermal Sensor Relay. Documentation could be better but the sensor itself is solid.
Nakul Choudhury (verified owner) –
Bought this Thermal Sensor Relay for my college project. Accurate readings, easy to code. Very happy!
Chirag Nayak (verified owner) –
Perfect for my weather station. This Thermal Sensor Relay gives consistent readings day and night.
Sanya Luthra (verified owner) –
Superb Thermal Sensor Relay! Using it in my environmental monitoring system. Very reliable data.
Mayank Iyer (verified owner) –
This Thermal Sensor Relay is a must-have for sensor projects. Plug and play with Arduino.
Chirag Malhotra (verified owner) –
Bought this Thermal Sensor Relay for my college project. Accurate readings, easy to code. Very happy!
Zubin Pandey (verified owner) –
Nice Thermal Sensor Relay. Readings are mostly accurate. Good enough for my hobby project.
Sanjay Agarwal –
Good Thermal Sensor Relay. Works as described. Calibration needed some patience but results are good.
Ajay Tandon –
Outstanding accuracy from this Thermal Sensor Relay. Compared with a professional instrument, readings match closely.
Rishabh Shetty (verified owner) –
Great Thermal Sensor Relay. Using it in my smart agriculture system. Reliable measurements every time.
Karan Saini –
This Thermal Sensor Relay works great with Arduino. Easy to wire up and code.
Suresh Luthra –
Love this Thermal Sensor Relay. Response time is fast and readings are stable.
Ayush Desai (verified owner) –
Excellent Thermal Sensor Relay! Readings are accurate and consistent. Perfect for my project.